Ross Racing Pistons Dome Top Small Block Chevy Forged Pistons

ROSS includes forced pin oilers and double spirolox on all of our stocking pistons. Pistons are balanced to plus or minus 2.5 grams throughout the set. You can buy replacement pistons one at a time as needed. Our valve pockets are designed to handle most camshaft applications. Our skirt design allows the pistons to work properly under intense heat and tremendous side loads without scuffing or splitting cylinder walls. Most normally aspirated pistons are designed to operate at .004 piston skirt to cylinder wall clearance. All ROSS stocking pistons include aircraft quality pins that are heat treated and end ground to work in full floated or press fit applications.

ROSS 11 to 1 compression ratio 22 degree Small Block Chevy pistons

ROSS 11 to 1 compression ratio pistons are designed for street, strip, or track where minimum weight is desirable.

Will work with 22 or 23 degree valve pocket angle or straight plug heads with standard location or .060/.040 split. Pin included are .927" diameter, 2.500 length, .150 wall, 120 gram weight, aircraft quality and are retained by double spirolox or can be press fitted into rods. Compression ratio based on 64 cc heads and .050 piston to head clearance (deck and gasket combined). Ring grooves are 1/16, 1/16, 3/16.

NOT RECOMMENDED FOR USE WITH NITROUS OR FORCED INDUCTION SYSTEMS.

ROSS 12.5 to 1 22 degree Small Block Chevy compression ratio pistons

ROSS 12.5 to 1 compression ratio pistons feature special hollow dome forgings for maximum strength with minimum weight. Will work with 22 or 23 degree valve pocket angle (stock Chevrolet), standard location or .060/.040 split and angle plug heads. Straight plug heads require slight hand fitting. Suitable for nitrous of 200 horsepower or less.

Aircraft quality pins included are 2.500 length, .150 wall, 120 gram weight or 2.950 length, .150 wall, 141 gram weight and are retained by double spirolox or can be press fitted into rods. Compression ratio is based on 64 cc heads and .050 piston to head clearance (deck and gasket combined). Ring grooves are 1/16, 1/16, 3/16 except as noted.

NOT SUITABLE FOR USE WITH FORCED INDUCTION SYSTEMS.

* indicates price includes oil ring support rails.
@ indicates that 1/16, 1/16, 1/8 ring grooves are utilized.
# indicates extra deck design with pin moved up for additional deck clearance.

ROSS 13-1 Compression Ratio 22 degree Small Block Chevy pistons

ROSS 13-1 compression ratio pistons feature hollow dome forgings for the lightest, strongest design available. Will work with 22 or 23 degree valve pocket angle (stock Chevrolet), standard location or .060/.040 split and angle plug heads. Straight plug heads require slight hand fitting. Pins included are .150 wall, aircraft quality and are retained by double spirolox or can be press fitted into rods. Compression ratio based on 64 cc head and .050 piston to head clearance (deck and gasket combined). Ring grooves are 1/16, 1/16, 3/16. All pistons below 4.080 bore size are not recommended for any type of endurance racing, and have 2.500 length pins. Piston above 4.100 bore size include 2.950 pins.

NOT RECOMMENDED FOR USE WITH FORCED INDUCTION SYSTEMS.

+ indicates 13.5 to 1 compression.
# indicates extra deck design with pin moved up for additional deck clearance.
* indicates price includes oil support rails

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